2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gstthread.h: Header for GstThread object
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 #ifndef __GST_THREAD_H__
25 #define __GST_THREAD_H__
29 #include <gst/gstbin.h>
34 extern GPrivate *gst_thread_current;
37 GST_THREAD_STATE_SPINNING = GST_BIN_FLAG_LAST,
38 GST_THREAD_STATE_REAPING,
39 /* when iterating with mutex locked (special cases)
40 may only be set by thread itself */
41 GST_THREAD_MUTEX_LOCKED,
44 GST_THREAD_FLAG_LAST = GST_BIN_FLAG_LAST + 4
47 #define GST_TYPE_THREAD (gst_thread_get_type())
48 #define GST_THREAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_THREAD,GstThread))
49 #define GST_IS_THREAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_THREAD))
50 #define GST_THREAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_THREAD,GstThreadClass))
51 #define GST_IS_THREAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_THREAD))
52 #define GST_THREAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_THREAD, GstThreadClass))
54 typedef struct _GstThread GstThread;
55 typedef struct _GstThreadClass GstThreadClass;
60 GThread *thread_id; /* id of the thread, if any */
61 GThreadPriority priority;
63 GMutex *lock; /* thread lock/condititon pairs */
64 GCond *cond; /* used to control the thread */
66 gpointer _gst_reserved[GST_PADDING];
69 struct _GstThreadClass {
70 GstBinClass parent_class;
73 void (*shutdown) (GstThread *thread);
75 gpointer _gst_reserved[GST_PADDING];
78 GType gst_thread_get_type (void);
80 GstElement* gst_thread_new (const gchar *name);
82 void gst_thread_set_priority (GstThread *thread, GThreadPriority priority);
83 GstThread * gst_thread_get_current (void);
88 #endif /* __GST_THREAD_H__ */